Specifications

Section 520-10S-WI3-203
030-101591 Rev. B
R
19
0806I3RB
10. WARRANTY & REPAIRS
10.1 Warranty
Westell warrants this product to be free of defects at the time
of shipment. Westell also warrants this product to be fully func-
tional for the time period specified by the terms and conditions
governing the sale of the product. Any attempt to repair or
modify the equipment by anyone other than an authorized
Westell representative will void the warranty.
10.2 Repair and Return
Westell will repair or replace any defective Westell equipment
without cost during the warranty period if the unit is defective
for any reason other than abuse, improper use, or improper
installation. To return defective equipment, first request a Re-
turn Material Authorization (RMA) number from Westell by
calling or using one of the options shown below. Once an RMA
number is obtained, return the defective unit (freight prepaid),
along with a brief problem description, to the address we will
provide to you when you contact us.
Voice: [phone]
email: [e-mail]
Replacements will be shipped in the fastest manner consistent
with the urgency of the situation. Westell will continue to repair
or replace faulty equipment beyond the warranty period for a
nominal charge. Contact Westell for details.
11. SPECIFICATIONS
11.1 Regulatory/Agency Specifications
The 520-10SWI3 module is designed to meet the following reg-
ulatory, safety, or environmental specifications or
requirements:
S Complies with UL1459
S Complies with Bellcore GR-1089
11.2 Ordering Specifications
To order units, call the telephone number shown in Part 9 and
please specify a specific model number shown in Table 9.
Part # Description
520-10SWI3 Model 520-10SW Issue 3, DS1 Digital Network Interface Unit.
CLEI* Code: T1L4HKFDAA. Barcode/ECI: 251610. CPR: F70206.
*CLEI is a trademark of Telcordia Technologies.
Table 9. Ordering and Option Information
11.3 Electrical and Physical Specifications
The electrical and signalling specifications are listed below,
and the physical specifications are shown in Table 10.
A. Line Rate: 1.544Mb/s
B. Insertion Loss: 1.0dB max at 772kHz
C. Line Impedance: 100 Ohms (±20%) at 772kHz
D. Loop-up Code:
Inband (unframed or SF): 11000 (>5 sec.)
ESF DL − 0001 0010 1111 1111 (>16ms);
Note: If the unit is set for the Office Repeater or Line Repeater
Mode, front-panel LPBK LED flashes at a slower rate to indicate
unit is Armed for Loopback activation. Sending the loop-up code
a second time activates the loopback circuit.
E. Loop-Down Code:
Inband (unframed or SF): 11100 (>5 sec.)
ESF DL − 0010 0100 1111 1111 (>16ms)
F. Loopback Timeout: 120-minute automatic timeout
G. Loopback Timeout Disable: Via front-panel MLB (Local
Provisioning) or remotely via code 1101 0101 1101 0110
(D5D6 HEX)
H. Manual Loopback Activation: Press MLB switch >3 sec.,
but <5 seconds, then release (for single loopback); >5
sec., but <7 seconds, then release (dual loopback) front-
panel LPBK LED lights steady; >7 seconds, unit enters
Local Provisioning Mode (Provisioning LEDs flash)
I. Manual Loopback Deactivation: Press MLB switch sec-
ond time (<3 seconds) or by sending loop-down code.
J. Loopback Regeneration: 0 to 30dB loss at 772kHz
K. CPE LOS: Set via the front-panel MLB switch (S5) during
Local Provisioning for AIS, CDI or LPBK; LPBK LED
flashes at a fast rate indicating unit is in a LPBK Upon
CLOS state
L. CPE − RCV LBO: 0dB or 7.5dB
M. NET − XMT LBO: 0dB or 7.5dB
N. Power:
Span Power at 57 to 63mA
Local Power at ±20Vdc to ±56Vdc or 22 to 28Vac
O. DC Voltage Drop (Span Powered): Less than 15Vdc at
60mA
P. Maximum Detect Error Rate: <10
−3
Physical Feature U.S. Metric
Height 5.6 in. 14.2 cm
Width 0.7 in. 1.8 cm
Depth 5.9 in. 15 cm
Weight (approx.) 12 oz. 340 g
Operating Temp. -40° to 149°F -40° to 65°C
Humidity 0 to 95% (non-condensing)
Mounting 200 MECHANICSr shelf
Table 10. Physical Specifications